ThunderCats Ho! – The Movie
1987 · Lynx-O / Snarf / Slythe / Grune the Destroyer / Ratar-O / Captain Shiner / Topspinner (voice) (as Robert McFadden)
SilverHawks
1986 · Cmdr. Stargazer / Steel Will / Hardware (voice)
SilverHawks: The Origin Story
1986
The Life and Adventures of Santa Claus
1985 · Tingler (voice)
ThunderCats
1985 · Snarf / Slithe (voice)
ThunderCats: Exodus
1985 · Snarf (voice)
The Wind in the Willows
1983 · Magistrate (voice)
The Coneheads
1983 · (voice)
The Flight of Dragons
1982 · Sir Orrin Neville-Smythe (voice)
The Leprechauns' Christmas Gold
1981 · Lord of the Leprechauns (voice)
The Berenstain Bears' Easter Surprise
1981 · Boss Bunny
Pinocchio's Christmas
1980 · Cricket (voice)
Gnomes
1980 · Kostya, the Russian Gnome (voice)
I Go Pogo
1980 · Howland Owl / Bothered Bat (voice)
Rudolph and Frosty's Christmas in July
1979 · Donner (voice)
The Fourth King
1977 · The beaver (voice)
The Easter Bunny Is Comin' to Town
1977 · Chugs / Old Man (voice)
The Little Drummer Boy: Book II
1976 · Plato (voice)
The Year Without a Santa Claus
1974 · Jingle Bells (voice)
'Twas the Night Before Christmas
1974 · Substation Operator / Councilmen / Handyman (voice)
Jungle Jack
1974
Who’s Dragon
1973
The Red Baron
1972 · Voice
Popeye Meets the Man Who Hated Laughter
1972 · Male characters (voice)
The Mad, Mad, Mad Monsters
1972 · Baron Henry von Frankenstein (voice)
The Emperor's New Clothes
1972 · Jaspar (voice)
Balloon Snatcher
1969 · Oscar (voice)
Scientific Sideshow
1969 · Oscar (voice)
Loops and Swoops
1968 · Sad Cat
The Abominable Mountaineers
1968
Big Game Fishing
1968 · Sad Cat
Mouse Trek
1967 · Cat (voice)
The Fuz
1967 · Super Basher/Bop/Pinrod/Police Officer/Robber/Citizen (voice, uncredited)
The Wacky World of Mother Goose
1967 · Humpty Dumpty/Zig Zag/Paddy Cake/Old King Cole (voice)
Robin Hoodwinked
1967 · King / Poor Man
The Squaw Path
1967 · Geronimo/Say-Ah the Medicine Man/Foback/Big Yawn (voice)
Cool McCool
1966 · Cool McCool (voice)
Scuba Duba Do
1966 · Sad Cat / Gadmouse / Fenimore / Latimore (voice)
A Balmy Knight
1966 · Sir Blur/Grandpa Dragon (voice)
The Defiant Giant
1966 · George the Giant
Haunted Housecleaning
1966
Gems From Gemini
1966
Milton the Monster
1965 · Milton the Monster (voice)
The Third Musketeer
1965 · Sad Cat / Gadmouse / Fenimore / Latimore / Narrator (voice)
Dress Reversal
1965 · Sad Cat / Gadmouse / Fenimore / Latimore / Narrator (voice)
Don't Spill the Beans
1965 · Sad Cat / Gadmouse / Fenimore / Latimore / Narrator (voice)
Gadmouse: The Apprentice Good Fairy
1965 · Sad Cat / Gadmouse / Fenimore / Latimore / Impressario / Narrator (voice)
A Leak in the Dike
1965 · Little Dutch Boy's Mother / Schoolteacher / Farmer / Peter Stuyvesant / American Indian (voice) (uncredited)
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